Icom IC-706MKII Manual page 6

KB2LJJ Radio Mods Database
Transmit power output after modification
Power output in watts as measured from an uncalibrated Diawa CN-620 wattmeter with vhf,uhf dummy load. Power output on
radio set to highest level.
FREQ FM PWR AM CARR FREQ
105 MHz 1.0
110 1.0
115 2.0
118 3.5
120 5.0
125 14.0
130 20.0
135 25.0
140 28.0
145 32.0
150 32.0
155 20.0
160 13.0
165 6.0
170 1.5
175 0.5
180 0.1
185 0.0
These are the readings I took after performing the mod. I took readings at key frequencies throughout the band to measure the
efficiencies of the different band pass filters, especially in the HF band. The attenuation at the edges of the filters are very visible
especially at the 8MHz cross point.
All readings were took with a bird wattmeter and a home made RF voltmeter, the latter is not reliable over 200MHz.
Thanks. Olivier, VE2NSM.
MHz V @ 50 Ohms
0.1
0.2
0.3
0.5
0.65
0.75
http://www.kb2ljj.com/data/icom/ic-706-MKII.htm (6 di 30)23/08/2009 23.05.07
0.0 400 MHz 2.0
0.0 405
0.0 410
0.7 415
1.0 420
3.5 425
15.0 430
17.0 435
18.0 440
18.0 445
18.0 450
18.0 455
10.0 460
1.5 465
0.0 467
470
W from Bird
Wattmeter
0,00 -
0,04 -
0,31 -
1,95 -
4,16 -
8,60 1,5
FM PWR
7.0
9.0
10.0
12.0
15.0
18.0
20.0
20.0
19.0
18.0
15.0
8.0
0.8
0.15
0.00
W from RF Voltmeter
0,00
0,00
0,00
0,01
0,11
0,59